Compression Spring, 316 Stainless Steel, Inch, 0.057" OD, 0.006" Wire Size, 0.159" Compressed Length, 0.25" Free Length, 0.12 lbs Load Capacity, 1.3 lbs/in Spring Rate (Pack of 10) Slightly magnetic stainless steel 316 wire per ASTM A313 (chemical and physical only) Spring ends are closed (squared), but not ground for efficient force transfer and reduced possibility of tangling Load capacity of 0.12 pound Maximum operating temperature of 570 degrees F (300 degrees C) Plain wire finish passivated per ASTM A967 for excellent resistance to corrosion and oxidation